Single-channel two-way barrier gate
By adopting a combination design of a rotatable camera and a rangefinder in a single-channel two-way gate access control system, the recognition blind spot problem caused by the fixed installation of the camera is solved, effective recognition of users of different heights is achieved, and system efficiency and user experience are improved.
Patent Information
- Application Number
- CN202422572491.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-10-24
AI Technical Summary
The fixed installation of cameras in the existing single-channel two-way gate access control system results in significant blind spots when identifying users of different heights, especially failing to identify shorter people, affecting usage efficiency and safety.
It adopts a rotatable camera design, combined with a rangefinder and linear motor to adjust the camera angle and height. After detecting shorter people through the rangefinder, the camera angle is adjusted to capture facial features, and the position of pedestrians is adjusted through ultrasonic ranging and horn prompts.
It achieves effective facial recognition for users of different heights, improves system efficiency and user experience, and reduces safety risks and management costs.
Smart Images

Figure CN223461904U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of barrier gate access control, and specifically relates to a single-channel two-way barrier gate access control. BACKGROUND
[0002] In the field of modern safety management, single-channel two-way barrier gate access control systems are widely used in various places such as residential communities, office buildings, and enterprise parks due to their efficiency and convenience. These systems usually integrate multiple identity verification methods to ensure the legality and security of the access personnel. Among them, face recognition technology gradually becomes one of the mainstream verification methods for access control systems due to its non-contact, high accuracy, and difficulty in forgery.
[0003] However, in existing single-channel two-way barrier gate access control systems, there is a common technical problem when using face recognition technology: the camera cannot be flexibly adjusted after being fixedly installed. This design limitation leads to a significant recognition blind area when identifying users of different heights. Specifically, for users who are shorter, their facial features may not be fully captured due to the fixed and high angle of the camera, resulting in recognition failure and the inability to normally open the access control.
[0004] This problem not only affects the efficiency of the access control system, but also reduces user experience, especially in places that require frequent access, such as residential community entrances, which causes unnecessary inconvenience and delays. In addition, for some special groups such as children, the elderly, or adults with low height, this technical defect may also cause safety hazards, as they may need to rely on other identity verification methods or manual release in the case of normal identification, increasing management costs and inconvenience.
[0005] Therefore, we propose a single-channel two-way barrier gate access control. CONTENT OF THE UTILITY MODEL
[0006] The utility model aims to provide a single-channel two-way barrier gate access control to solve the problems raised in the background technology.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0008] A single-channel two-way barrier gate access control includes two side frames, a gate access control board is installed at the ends of the opposite faces of the two side frames, a machine shell is installed on the top of one side frame towards the rear side and the top of the other side frame towards the front side through a support, a display screen is embedded and installed on the front of the machine shell, and a card reader is installed at the bottom of the machine shell.
[0009] A sliding cavity is formed on the gate access control board, and a range finder for distance measurement is installed inside the sliding cavity.
[0010] The camera is arranged on the two sides of the inside of the shell, and a circular hole for placing the camera is arranged on the front side of the shell and above the display screen, the rotating assembly is arranged on the two sides of the inside of the shell, and the camera is fixed on the rotating end of the rotating assembly.
[0011] As an improved technical solution, the outer wall surface of the camera is sleeved with a rubber sleeve, and the outer wall surface of the rubber sleeve is fixed at the circular hole of the shell, and the outer side end of the rubber sleeve is provided with a cavity.
[0012] As an improved technical solution, the rotating assembly comprises two horizontal rods fixed on the shell, rotating shafts are rotatably installed on the opposite ends of the two horizontal rods through bearings, a fixing sleeve is fixedly connected between the opposite ends of the two rotating shafts, the tail end of the camera is fixed in the cavity of the fixing sleeve, and an angle sensor is installed on one end of the rotating shaft.
[0013] As an improved technical solution, the camera further comprises a rod holder plate fixed on the shell, an electric telescopic rod is installed on the top end of the rod holder plate, a rack is installed on the movable end of the electric telescopic rod, and a gear meshing with the rack is sleeved on the rotating shaft on the side of the rack.
[0014] As an improved technical solution, the range finder comprises a horizontal bin slidably installed in the sliding cavity, and an ultrasonic transmitting end and an ultrasonic receiving end are respectively installed on the two sides of the inside of the horizontal bin.
[0015] As an improved technical solution, a horn is fixedly installed in the inside of the horizontal bin and between the ultrasonic transmitting end and the ultrasonic receiving end.
[0016] As an improved technical solution, a linear motor is fixed on the transmitting end of the access control baffle away from the ultrasonic transmitting end, the movable end of the linear motor is fixedly connected with a horizontal connecting plate, and the horizontal bin is fixed on the protruding end of the horizontal connecting plate.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] 1. The utility model discloses, when the camera detects someone but the face recognition fails, by range finder detection, range finder is located the highest point at this moment, and the distance of the first object in front is detected, if the distance end, then the person in front of the access control is explained, at this time, the face is not recorded in the system, and is not passed, if the range finder at the highest point detects the distance far, then pass the horizontal warehouse that linear motor drives moves down, realize the height that range finder is at to adjust down, when range finder moves down, detects the person standing in front of the barrier gate, then explain that the user with short stature is located in front of the barrier gate, at this time, the angle that the camera is at is adjusted down, make the range that the camera is shot includes down, more beneficial to the face of the pedestrian in front of the barrier gate is shot, realize, when the user with short stature crosses the barrier gate, the facial features can also be captured and identified.
[0019] 2. The utility model discloses, linear motor can drive ultrasonic emission end and ultrasonic receiving end carry out vertical height's adjustment, thereby realize can detect the person of different height, and when short stature, also can through the loudspeaker broadcast the pedestrian that needs to retreat how far, more beneficial to the facial features of camera and capture.
[0020] 3. The utility model discloses, the four around of camera are equipped with rubber bush, through rubber bush fixed in the round hole on the casing, belong to between camera and round hole leave spacing, avoid when adjusting the angle of camera, the collision between camera and casing, and the obstruction of rubber bush also avoids the dust of outside through round hole and enters the inside of casing. ACCURACY
[0021] Fig. 1 It is the structural diagram of single channel two -way barrier gate access control;
[0022] Fig. 2 It is the structural diagram of access control baffle in single channel two -way barrier gate access control;
[0023] Fig. 3 It is the structural diagram of horizontal warehouse in single channel two -way barrier gate access control;
[0024] Fig. 4 It is the structural diagram of camera in single channel two -way barrier gate access control;
[0025] Fig. 5 It is the structural diagram of rotating assembly in single channel two -way barrier gate access control.
[0026] In the figure: 1, side frame; 11, access control blocking plate; 12, sliding cavity; 2, machine shell; 21, display screen; 22, card reader; 3, horizontal bin; 31, ultrasonic transmitting end; 32, loudspeaker; 33, ultrasonic receiving end; 34, horizontal connecting plate; 35, linear motor; 4, camera; 41, rotating assembly; 411, rod frame plate; 412, electric telescopic rod; 413, angle sensor; 414, rack; 415, gear; 416, fixed sleeve; 417, horizontal rod; 418, rotating shaft; 42, rubber sleeve; 43, cavity. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0028] Embodiment 1
[0029] Please refer to Figs. 1-5 The utility model embodiment proposes a single-channel two-way barrier gate access control, which comprises two side frames 1, access control blocking plates 11 are installed at the two ends of the opposite faces of the two side frames 1, machine shells 2 are installed on the rear side of the top end of one side frame 1 and the front side of the top end of the other side frame 1 through supports, display screens 21 are inlaidly installed on the front faces of the machine shells 2, and card readers 22 are installed at the bottom ends of the machine shells 2.
[0030] Sliding cavities 12 are formed in the access control blocking plates 11, and range finders for ranging are installed in the sliding cavities 12.
[0031] Cameras 4 are arranged at the two sides in the machine shells 2, circular holes for placing the cameras 4 are formed in the front side of the machine shell 2 and above the display screen 21, rotating assemblies 41 are installed at the two sides in the machine shell 2, and the cameras 4 are fixed at the rotating ends of the rotating assemblies 41.
[0032] When the face detection fails, the range finder in the highest point state does not detect a person, the range finder is driven to move downward, and a person standing in front of the barrier gate is detected, which indicates that a user with a lower height is located in front of the barrier gate. At this time, the angle of the camera is adjusted downward, the range photographed by the camera is downward, which is more beneficial to photograph the faces of pedestrians in front of the barrier gate, and when the user with a lower height passes through the barrier gate, the face features of the user can also be captured and recognized.
[0033] The outer wall surface of the camera 4 is sleeved with a rubber sleeve 42, and the outer wall surface of the rubber sleeve 42 is fixed at the circular hole of the shell 2. The outward side end of the rubber sleeve 42 is provided with a cavity 43. The rubber sleeve 42 is installed around the camera 4 and fixed in the circular hole of the shell 2. There is a gap between the camera 4 and the circular hole, which avoids collision between the camera 4 and the shell 2 during the angle adjustment of the camera 4. The blocking of the rubber sleeve 42 also avoids the dust from the outside entering the inside of the shell 2 through the circular hole.
[0034] The rotating assembly 41 includes two horizontal rods 417 fixed on the shell 2. The opposite ends of the two horizontal rods 417 are rotatably installed with rotating shafts 418 through bearings. The opposite ends of the two rotating shafts 418 are fixedly connected with a fixing sleeve 416. The tail end of the camera 4 is fixed in the cavity of the fixing sleeve 416. One end of the rotating shaft 418 is installed with an angle sensor 413.
[0035] The camera 4 further includes a rod holder plate 411 fixed on the shell 2. The top end of the rod holder plate 411 is installed with an electric telescopic rod 412. The movable end of the electric telescopic rod 412 is installed with a rack 414. The rotating shaft 418 on one side of the rack 414 is sleeved with a gear 415 engaged with the rack 414.
[0036] The angle adjustment process of the camera 4 downward is as follows:
[0037] The extension of the electric telescopic rod 412 drives the rack 414 to move upward. Under the meshing transmission of the rack 414 and the gear 415, the rotating shaft 418 rotates clockwise, thereby adjusting the shooting angle of the camera 4 downward. After shooting, the electric telescopic rod 412 is shortened to reset, so that the camera 4 is in a flat state.
[0038] The range finder includes a horizontal bin 3 slidably installed in the sliding cavity 12. The ultrasonic transmitting end 31 and the ultrasonic receiving end 33 are respectively installed on the two sides of the horizontal bin 3. The ultrasonic transmitting end 31 generates ultrasonic waves, and the ultrasonic receiving end 33 receives them, thereby judging the distance between the pedestrian.
[0039] The horizontal bin 3 is fixedly installed between the ultrasonic transmitting end 31 and the ultrasonic receiving end 33. When the height is relatively low, the loudspeaker 32 can also be used to broadcast how far the pedestrian needs to retreat, which is more conducive to the camera 4 capturing the facial features.
[0040] The access control barrier 11 is fixed with a linear motor 35 away from the transmitting end of the ultrasonic transmitting end 31. The movable end of the linear motor 35 is fixedly connected with a horizontal connecting plate 34. The horizontal bin 3 is fixed on the protruding end of the horizontal connecting plate 34. The linear motor 35 can drive the ultrasonic transmitting end 31 and the ultrasonic receiving end 33 to adjust the vertical height, thereby realizing detection of people of different heights.
[0041] The working principle of the utility model is as follows:
[0042] When a person passes through the barrier gate, the camera 4 takes a picture and carries out face recognition, and when the face recognition passes, the access control barrier 11 is opened for the pedestrian to pass through;
[0043] When the camera 4 detects a person but the face recognition fails, the distance measuring instrument is used for detection, at this time, the distance measuring instrument is located at the highest point, and the distance of the first object in front of the distance measuring instrument is detected, if the distance is far, it indicates that there is a person in front of the access control, at this time, it indicates that the face is not recorded in the system, and is not passed through;
[0044] If the distance measuring instrument located at the highest point detects a far distance, the horizontal bin 3 is driven to move downward by the linear motor 35, the height of the distance measuring instrument is adjusted downward, when the distance measuring instrument moves downward, a person is detected to stand in front of the barrier gate, it indicates that a user with low height is located in front of the barrier gate, at this time, the angle of the camera 4 is adjusted downward, the range of the camera 4 is included downward, it is more beneficial to take a full picture of the face of the pedestrian in front of the barrier gate, and when the user with low height passes through the barrier gate, the face features can also be captured for recognition.
[0045] Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A single-lane, two-way barrier gate access, characterized by: Include: Two side frame (1), two said side frame (1) opposite two ends are provided with access control baffle (11), a said side frame (1) top end of the rear side and the other side frame (1) top end of the front side are provided with machine shell (2) through support, the front of the machine shell (2) is embedded with display screen (21), the bottom of the machine shell (2) is provided with card reader (22); The access control baffle (11) is provided with sliding cavity (12), and the inside of the sliding cavity (12) is provided with range finder for distance measurement; The inside of the machine shell (2) is provided with camera (4), and the front side of the machine shell (2) is provided with circular hole for placing camera (4) above the display screen (21), the inside of the machine shell (2) is provided with rotating assembly (41), and the camera (4) is fixed on the rotating end of the rotating assembly (41).
2. The single-lane, two-way barrier gate of claim 1, wherein: The outer wall of the camera (4) is provided with rubber sleeve (42), and the outer wall of the rubber sleeve (42) is fixed on the circular hole of the machine shell (2), and the outer side of the rubber sleeve (42) is provided with cavity (43).
3. The single-lane, two-way barrier gate of claim 2, wherein: The rotating assembly (41) includes two horizontal rods (417) fixed on the machine shell (2), the opposite ends of the two horizontal rods (417) are rotatably provided with rotating shafts (418) through bearings, the opposite ends of the two rotating shafts (418) are fixedly connected with fixing sleeve (416), and the tail end of the camera (4) is fixed in the cavity of the fixing sleeve (416), and one side of the rotating shaft (418) is provided with angle sensor (413).
4. The single-lane, two-way barrier gate of claim 3, wherein: The camera (4) further includes rod rack plate (411) fixed on the machine shell (2), the top end of the rod rack plate (411) is provided with electric telescopic rod (412), the movable end of the electric telescopic rod (412) is provided with rack (414), and the rotating shaft (418) on one side of the rack (414) is provided with gear (415) engaged with the rack (414).
5. The single-lane, two-way barrier gate of claim 4, wherein: The range finder includes horizontal warehouse (3) slidingly installed in the sliding cavity (12), and the inside of the horizontal warehouse (3) is respectively provided with ultrasonic transmitting end (31) and ultrasonic receiving end (33).
6. The single-lane, two-way barrier gate of claim 5, wherein: The inside of the horizontal warehouse (3) and between the ultrasonic transmitting end (31) and the ultrasonic receiving end (33) is fixedly installed with loudspeaker (32).
7. The single-lane, two-way barrier gate of claim 6, wherein: The access control baffle (11) is fixed with linear motor (35) away from the transmitting end of ultrasonic transmitting end (31), the movable end of the linear motor (35) is fixedly connected with horizontal connecting plate (34), and the horizontal warehouse (3) is fixed on the protruding end of the horizontal connecting plate (34).